Steam-boiler.



G. W. EDWARDS..

STEAM BOILER.

APPLICATION FILEDIuLvI1,I9I5.

1 ,1 83,96 1. Patented' May 23, 1916.

@@@QQGQQQQGQQQO UNHED STATES PATENT @FICE esoneri?. w. EDWARDS,-OF=DETROIT,MIGIIIGAN, AssIGNoR oFloNEFrI-ALF To WILLIAM *.IJoLIvn'rTE, oFDETItoIT, MICHIGAN.

' STEAM-solan.

"pecication of Letterlsfliratent.

Patented May 23,1916.

Appntatimedl:any 17, 1915. -fseral'm 40,361;

TofaZZvww/m t mag/concernf o v A 7.*

Be it known that I,-GEoRdE W.-EDWARDS, va Citizen-of the -United` States of,America, residing at Y Detroit; in the* county-"of Vl'ayne and State offMichigan, have invented l'cer'- tain new and usefullinprovements in Steam- Boilers, of which thefollowing'is-'aspeciicatiorn referenceu bei-ng hadj therein tothe n accompanying drawings l "This -inventron relates to 'steam `boilers,

` l-and it lhas for one of yits obj ects-the' provi'- Aao Yat

sion of means whereby the circulation I--of the water inV the boilerwill bei enhanced.

e further object of the inventinf'resides in the provisionofimproved Ineans'wherethe circulation of the 'water intheA boiler will project all' heavy andirnpure matter intoi the bottom off thebqilen'- where" pipe connectedto val blow-off cock can readily` Edis- 'chargefthe sameithere'fro'm. Further objets of theinvetinfwill hereinafter appear and l be particularly deiinecl int-he claims. l Y

The invention has been*` clearly illustrated in the accompanying drawings, in which similar characters "denote similar parts, -l and in*wliicli:-` y v *fl Figa-fe e1 is co'sslsectienefa fbo'ilerlff the marine or'Sct'chtype ;'-`Fig.21re`presents la fractional longitudinal vsection @of `lthe boiler, f lshowing '-f'potins f the plates -fand Vthe' deflectingf'gateg; there-of, his-v-iwbeing Vaken on; @about the uaeiiriffoffrig; Fig. e is; :maar 'gestionaviwztfafpiae conneetion; andf 1mi-fg.v 4i vis' la f section i for baille/member fora boiler havingtwdinam j fines.

'Referringto the `drawings,-101 dnotesthe boiler4 shell ythrough which'f pass-three'y rnain f flues 111, which may be" ofJany desired f con- 4`Catena by 12. vxInftins/present; inscaneeil'pfovide within; thei boilerf shell? al 'pair 'f circu lating vplates, 13 disposed *at opposite sides r'of Ithe central line- 'fl-the boiler andi eitendto permit thel circulation 'f of water', lfas follows: `Itis-evident thatt'he waterj in direct experience has demonstrated "the fffa'ct tfhat when circulating plates are provided -iirthe manner illustrated, the hot water.- on the inside of the 'circulating plates will, by virtue of theebullition thereof, rise or move upward,"`so that consequently the body of;

water fcontained lbetween Y the .circulating plates 13 and the'outer shell willmove down- 'walrdor inthe direction of arrow a. #Now it sometimes happens thatthe circulati'onthus.y .y established is `somewhat stronger on one side `offfthefboiler than .itis on the other, andit fis :also vshown that they two rcirculations thus established may yhavey a tendency of counteractingl each vother or. to form a check *which may even result inforcing thedownwardly moving wateron* oneside of the boilerfsllghtly backward.V In order to avoid '-thisdiiiculty and to equalize, as far aspossible, these counteracting strains or 1 movements, I provide in the bottom-ofthe shell,

`-and in the space between the lower edges of lthe 4circulating'plates, bafie -menrbers '14y preferably VUishapedin' cross section, f the open sides of said lmembers "being toward vtheright'a'ndr left andare so arranged asto intercept'the downwardly moving streams,

fso that consequently theyzwill be directedin Jan' 'upward direction indicated by arrows o.' kThe upper terminals ofthe baiiie memlbers'are in 'proximity to theecentral main flue 11l and the lower terminals 14 of-`said members 1 adjacent the boiler shell -10, thus formingy pockets that'l retardl Yand deflect the circulation of water. It isfe'ssentialfhowever,y thatuthe lower terminals 1,4. of the baffles be slightly spacedv from the boiler v shell', inorderto permitfallheavy matters Jo'rimpurities'` to `pass beneath the samev into whatmay beI termed vthe Y sediment chamber 7 established beneath the baffles and yalso containing a pipe 15 which is preferably perforated and extends? through the boiler head'at which 'point a blow-olf cock Y(not shown) -may beprovided, which,` when -iopenedwillpermlt all sediment collected to be blown out, as willbe readilyv understood.

'It hasbeen stated above that my present :invention comprises as 'one of its features,l

certain novel means for forming and 'con- `necting thei'nembers orparts of the circulating plates,l and by referring to Figs, 1 and a Qyit will be seen that each circulating" mem# ber consists ofa series of pla-tes @fthe lrori- "zontalfedges of which abut each other while 'their vertical'edgesjjare guidedor held in groovedfholders'16,17,the holders 16 being edges by an intermediate--grooved holder `17 v Y formed inV a similar mannery ,to the `outer than the other two members so as to form a groove. The holders thus formedmay be held in positionV by brackets disposed" at various points along the plate, as shown. Furthermore, brace members or brackets,- such as indicated at 21 are usedin conjunction with the plates andl interposed between Vthe circulatingy Ymembers and the boiler shell. The several plates c of. the boilerare Vmadefin sections indicated 1n a vgeneral Way by A and B in Fig.v 2,.the ytwo sections being4 supported atV their adjacent holders above described and consisting pref.-

erably of the three members z', 5, 2' the intermediate one being less in width than the outer f ones. and thusforniingatthe opposite sides thereof a pair ofgrooves which areA adapted to receive the marginal portions of the plates Vportions ofthe several plates Ac will ybe retained in contact, or inother words, whereby i Vtheir adjacent-,edgesgwill beheld together Y and in alinement' with, each other vertically, these means consisting preferably of strips- (see Fig. 3)Y riveted -to the,upper i I Y ing gates trunnioned 1n said boiler as acmi i edge of one.plate 0 and forming a groove adapted to receive vthelower edge ofy the next adjacent plate.` lyvirtue of -this construction it will be readily understood that the several. plates: c can be readily inserted into place `because theyare formed in comparatively .short sections of such width,V as `in aybe readily passed through the'man-hole gof'the boiler.

l Theglowerfends of the circulating plates 13-ter1ninate in defleeting gates 30, each .made ofy longitudinal sections havingl the yedgesthereof connected, as' at :31.V 'The lower ends of the deflecting gates are trunnioned 'or-pivoted, as at 33, in the end walls 32of Y the boiler shell 10 and the upper edges of said gates are in proximity to the stationary portions of the circulating plates 13 and at the ,lower ends kof the` holders 16 and `17. These holders terminate at the, lower edges of the stationary portions ofthe walls to provide clearance for adjustment of the gates 3,0; and provision is-made 'whereby each gate can be adjusted to restrictthe passage between the gateand the boiler shell to deHect a portion. ofthe outer bodyvof water, in the passage,-,into` the inner bodyof j* water. The means employed for thispur? i pose, consistof rock shafts 34 journaled" in Vupper edge of the gate, consequently by rocking the shaft, the gate can be opened or adjusted, as shown by dotted' lines at the right hand sideo'fFig. 1. l

In Fig. 1 there is shown a baille member 39, of inverted V-shape in crosssection, which can ibeused with circulatingk platesin a boiler having a pair of'main flues.

.lclaimzf` y., s l j. 1. The combination with a, boiler shell, and the iiuesthereof, of a pair of circulating plates 'spaced from saidshell, baflie members at the bottom 'of said shell, and adjustable deflecting gates trunnioned contiguous to said baille members and adapted to have ,the free `,edges thereof moved relative to the lower ends of said circulating plate.

2.- The combination with ja boiler shell, and the nues thereof, of a pair of circulat- Aingplates surrounding said iues and spaced .from saidshell, deflecting gates trunnioned in the lower part of said shellas a continua-r 'tion of said circulating plate, and means tinuation of said circulating plates and having edges-thereof'adjustable at theedges of said circulating plate, said circulating plate and saidfgates being composed of plates having abuttingiedges, and strips carried by an Yedge, of each plate lproviding a grooveto -leceive the `edge ofan tadjoining plate. v

j 4. 1naboiler, circulating plates, deflecting gates trunnioned in said boiler adjacentr to the lower edges of said circulating plates and having the free edges thereof at the edges ofrsaid circulatingplate, and means including a .rock shaft supported by` the edges of said circulating plates adapted to adjust the free edgesof said deflecting gates. 5. The combination with a boiler shell and the nues thereof, of.V a pair of circulating members4 interposed between lflues andthe shelland spaced from each other. at their lower edges, each member comprising a plusecured to the boiler heads for holding the end edges of said plates in position in the shell, adjustable gates supported by the lower edges lof said circulating members and the end wallsof said boiler shell, and means including rock shafts for adjusting said gates.

Copies ot this patent muy be obtained for 7. The combination -with a boiler shell, Y.

and flues, of a circulating plate disposedA between said flues and the boiler shell provid-y ing a water passage, and means normally as a continuation of said plate adapted to be swung toward said shell to` deflect water from saidpassage toward said flues at a point intermediatethe'endsof said passage.y In testimony whereof Ifaix my signature in presence of two witnesses. Y

GEORGE W. EDWARDS.

Witnesses:

WILLIAM J. JoLIvE'r'rE, OTTO F. BARTHEL.

ve cents each, by lddreuinz the Commissioner of Patents, wuhingtomlhc." 

